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H. T. POTTER. RING TRAVELER FOR SPINNING.

No. 66,104. Patented June 25, 1867.

Wiinesses.

g1tith girders gaunt ffir'r.

IMPROVEMENT INZRINGTRAVELLERS FOR SPINNING.

digs Stlghtlo refemt it in time idiot 39mm nit nking part at tlje tame.

TOALL WHOM IT MAY CONCERN:

Be it .lmOwnth-at I. Hmmr POT EER, of Norwichtown, in the county of New Londom-and-State of Connecticdtfihave invented certain new unduseful Improvements in Ring-Travellers for Spinning Machinery; and I do hereby declare that the followingis a full, clear, and exact description of the same, rei'ei'ence being had to the accompanying drawings-making a portion of this specification, in which' Figure 1 is a eentl'al vertical scctionof a ring-frame furnished with a traveller, constructed according to my intention. l

Figure 2 is a-pla n view of thering and traveller of the same.

Figure 3 is a central vertical section, showing a modified form tr my invention.

Figure 4 is a plan view of thesame.

Similar letters of reference-indicate corresponding parts in all the-figures.

Much difiiculty has been experienced with the ringfiravellers hitherto devised, from the unequal tension exerted upon the yarn in passing to the spindle, thesaid inequalities in the tension not only rendering the yarn extremely liable to be broken in starting the spindle, but-also causing material variations in the size thereof. This invention is designed to remedy thcsc objections, and-it consists ina transverse bar so combined with thering and spindle of the ring-frame as to rotate freely within the said ring, and in contact with the spindle or the yarn thereon; whereby the yarn is caused to pass to the spindle at a uniform angle, and consequently be kept at a uniform tension, thus effectually securing'the desired result. The invention further consists in a novel arrangement of parts, whereby the aforesaid transverse bar lS-SGDHI'QlY retained in place at the same time that its .freemovement around the spindle is provided for V I To enable others to understand the'construction and operation of my invention, 1 will proceed to describe it'with. reference to the 'drulwin'gs i The-rotating spindle A may be of any, ordinary or suitable form and construction, and extends through the ring in the usual manner. The said ring, shown at B, is formed at its upper side with an internal rebate, a, in which is fitted an annular plate,'b, which is hollowed out, at its inner and under side, in such manner that an annular gro'ore, c, is provided in the interior of the ring thus fcrlned, -the said, groove receiving, at nearly opposite points, the two ends of a transverse bar, '6, which extends across the central, opening of the ring B,

and is designerl't-o be kept in contact with the spindle A1, or the yarn wound thereon, as hereafter presently set forth.

The yarn passing over the bar c to the spindle, as shown in red outline in fig, 1, is twisted and wound upon the said spindle, the yarn as it passes thereto holding the bar against thesaine, or agai'nstthe yarn wound thereon; and inasmuch as the bar e, as it is carried around with'the spindle by the rotation of the same, is always kept in a position tangential to the circumference pf the said spindle, it follows that the yarn, in'pass'ing.

to the spindle' over the aforesaid bar e, will he always liept at the sameangle to such circumference, and drawing', as. a consequence, with a uniform degree of force upon the bar e, is subjected to a'unifl'orm tension,-the tension being, of course, proportional to the weight. of the bar a andthe friction of the ends thereof in the annular grooue p, in which they traverse, as the bar is carried around by the rotation of the spindle, asihereinbefore explained. Not only is a more uniform tension upon the thread secured by this means, but inasmuch as the dragging action which produces such tension is exerted upon the thread at a. point much nearer the spindle than is the case with the ordinary ring-traveller, it-follows that this tendency of the'tension to draw the fibres apart, when the said point isat a greater distance from th spindle than the length of the fibres, is effectually counteracted; In the modification represented in figs. 3 and 4, the bar 0', instead of being made straight, as shown in figs. 1 and 2, is made semicircular or arc-shaped, with its extremities placed in ajgroove, formed in the r ing .B, in a manner substantially the same as when the straight bay isemployed, the operation of the semicircular burbeing substantially the same as that of the said straight one.

WhatI claim as my inventiom and desire to secure by Letters Patent, is-

1 The transversebar e, in combination with the ring and spindle, substantially as and for the purpose specified.

2. The annular plate 6, arranged in relation with the transverse bar e, the ring, and the spindle, substantially as and for the purpose specified.

, HENRY T. POTTER.

Witnesses:

EDWARD DE WoLr, Wnns'rns PARK. 

